Prince of Squillace was a noble title created in 1494, by King Alfonso II of Naples (House of Trastamara) for Gioffre Borgia on the occasion of his wedding with the king's daughter Sancia d'Aragona.
During the Norman (1130–94) and Swabian (1194–1266) periods of the kingdom of Sicily, it was the seat of a county.
On Jean de Montfort's death in 1300, the county of Squillace escheated to the crown.
[9] Viscount Hugh V of Bas was appointed Count of Squillace by King Frederick III of Sicily.
Upon the death of María Antonia in 1728, the principality of Squillace reverted to the Crown.